Search a number
-
+
20147054 = 229794397
BaseRepresentation
bin100110011011…
…0101101101110
31101220120120012
41030312231232
520124201204
61555453222
7333150524
oct114665556
941816505
1020147054
1110410864
1268b7212
134235345
142966314
151b7e76e
hex1336b6e

20147054 has 16 divisors (see below), whose sum is σ = 31665600. Its totient is φ = 9600864.

The previous prime is 20147033. The next prime is 20147059. The reversal of 20147054 is 45074102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384 + ... + 6780.

It is an arithmetic number, because the mean of its divisors is an integer number (1979100).

Almost surely, 220147054 is an apocalyptic number.

20147054 is a deficient number, since it is larger than the sum of its proper divisors (11518546).

20147054 is a wasteful number, since it uses less digits than its factorization.

20147054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 20147054 is about 4488.5469809282. The cubic root of 20147054 is about 272.1054143746.

The spelling of 20147054 in words is "twenty million, one hundred forty-seven thousand, fifty-four".

Divisors: 1 2 29 58 79 158 2291 4397 4582 8794 127513 255026 347363 694726 10073527 20147054